OIDC Client Workflow
This workflow implements an automated client authentication process based on the OpenID Connect protocol, supporting the PKCE mechanism to enhance security. Users trigger the login through a Webhook, automatically completing the authorization code retrieval, access token exchange, and user information request, ultimately returning a personalized welcome page. This process is suitable for web applications or APIs that require third-party identity providers for single sign-on, ensuring that only successfully authenticated users can access protected content, thereby enhancing system security and user experience.
Tags
Workflow Name
OIDC Client Workflow
Key Features and Highlights
This workflow implements a client authentication process based on the OpenID Connect (OIDC) protocol, supporting PKCE (Proof Key for Code Exchange) to enhance security. Users initiate the login process by accessing a webhook, which automatically handles authorization code retrieval, access token exchange, and user information requests, ultimately returning a personalized welcome page. The entire process is highly automated and integrates flexible conditional logic to ensure that only authenticated users can access protected content.
Core Problems Addressed
This workflow addresses the challenge of securely and conveniently implementing user authentication and authorization based on the OIDC standard in automated scenarios. It is especially suitable for applications requiring third-party identity providers (such as Keycloak) for single sign-on (SSO) or user identity verification. The workflow employs the PKCE mechanism to prevent authorization code interception and safeguard token transmission security.
Application Scenarios
- Web applications or APIs requiring OIDC-based identity authentication
- Systems that need to automate user login and information retrieval processes
- Enterprise applications integrating unified identity management via identity providers like Keycloak
- Development environments for automated testing or demonstration of OIDC authorization flows
Main Workflow Steps
- User accesses the webhook to trigger an identity authentication request.
- The workflow sets necessary OIDC endpoint variables (authorization endpoint, token endpoint, user info endpoint, client ID, scopes, etc.).
- It checks whether the request contains an authorization code and determines subsequent logic based on whether PKCE is enabled.
- If an authorization code is present and PKCE is not enabled, the workflow exchanges the code for an access token at the token endpoint.
- It verifies whether the access token was successfully obtained.
- Using the access token, it calls the user info endpoint to retrieve user details.
- Depending on whether user information is successfully retrieved, it returns a personalized welcome page or a login form page.
- The login form supports automatic handling of authorization code exchange, PKCE challenge code generation, and token storage.
Involved Systems or Services
- OpenID Connect standard authentication services (e.g., Keycloak)
- HTTP webhook interface
- HTTP request nodes for calling OIDC endpoints
- Built-in JavaScript code nodes for handling cookies and PKCE logic
- HTML nodes for returning login and welcome pages
Target Users and Value
- Software developers and operations personnel: Quickly build and test OIDC client authentication workflows, reducing development and integration costs.
- Enterprise application teams implementing single sign-on (SSO) and unified identity authentication.
- Automation workflow designers and security engineers: Achieve secure authentication process automation to enhance system security and user experience.
- Educational and training institutions and technical demonstrators: Serve as a practical case study of the OIDC protocol and PKCE mechanism to aid understanding of modern identity authentication technologies.
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